How many solar terms are there in a year?

Twenty-four solar terms can reflect the changes of seasons, guide agricultural activities and affect the food, clothing, housing and transportation of thousands of families. The twenty-four solar terms are determined according to the position of the sun on the ecliptic (that is, the orbit of the earth around the sun). April 20 14, the Ministry of Culture of China officially began to declare the "24 solar terms" to UNESCO's List of Intangible Cultural Heritage of Humanity.